This inventor holds 7 USPTO granted patents. Top assignee: Mitsubishi Denki Kabushiki Kaisha. Active years: 1991-1997.
Location History:
- Itami, JP (1991 - 1993)
- Fukuoka, JP (1994 - 1997)
Company Filing History:
Years Active: 1991-1997
Title: Masataka Takehara: Innovator in Optical Semiconductor Technology
Introduction
Masataka Takehara is a prominent inventor based in Itami, Japan. He has made significant contributions to the field of optical semiconductor devices, holding a total of 7 patents. His work focuses on enhancing optical communications technology, which is crucial for modern telecommunications.
Latest Patents
One of Takehara's latest patents is an optical semiconductor device designed for optical communications with increased precision. This invention involves a method to accurately position an optical semiconductor element during fabrication. The process includes forming a step on the upper surface of an electrode that projects from a lead frame. A submount is soldered to a lower stage surface, while solder is applied to its upper surface. A collet, supported by a spring, holds a laser diode element and approaches the electrode from above. The positioning is precise, allowing for effective soldering of the laser diode element to the submount. This innovation simplifies the fabrication process by molding the laser diode element with transparent resin.
Another notable patent is a bonding method and apparatus that utilizes a laser beam to bond lead terminals to bumps of a semiconductor chip. This apparatus determines the state of contact and bond quality based on temperature signals obtained during the laser irradiation. This ensures reliable bonding by checking the contact state before proceeding with the bonding operation.
Career Highlights
Masataka Takehara is associated with Mitsubishi Electric Corporation, a leading company in the field of electrical and electronic equipment. His work has significantly advanced the capabilities of optical semiconductor devices, making them more efficient and easier to manufacture.
Collaborations
Throughout his career, Takehara has collaborated with notable colleagues, including Masaharu Yoshida and Kazunari Michii. These collaborations have contributed to the development of innovative technologies in the semiconductor industry.
Conclusion
Masataka Takehara's contributions to optical semiconductor technology have made a lasting impact on the field. His innovative patents and collaborations reflect his dedication to advancing technology in telecommunications.